It probably worked out this way.
Carrier A: Has a great voice rate on roaming but data was too high.
Carrier B: Has an expensive voice rate but reasonable data.
Since about 99% of roaming usage is voice, you will roll into Carrier A first.
Prior: BES: 7510, 7520, 7290, 7230, 7130, 8220 (No Data Plan), Droid Eris
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